Android findviewbyid oncreate null

The one argument version passes null as the parent view and doesnt attach to parent. My app have 2 activities. Without this you'll not be able to apply a custom menu layout and to use findViewById.

You dont have to call findViewById when using view binding instead just use the properties provided to reference any view in the layout with. Note that the include tag has an id! Easy Mistake: Calling setContentView with the layout resource id instead of the inflated binding object is an easy mistake to make. Just take a look at the activity_main.

And not only those from this site. Check out the top, java, packages or, classes. Use view binding in an Activity If you have a layout called activity_awesome.

This is useful for fitting view binding into your existing infrastructure and when refactoring code to use ViewBinding. And, since it doesnt have any type-safety built in its easy to ship code that calls View binding replaces findViewById with a concise, safe alternative. The most important thing here is that you're trying to retrieve a MenuItem; to achieve this you have to override two methods onCreateOptionsMenu and onOptionsItemSelected.

@Override public void onStart super. Note, the actual generated code for the bind method is longer and uses a labeled break to optimize bytecode.

In an Activitys onCreate method you pass root to setContentView to tell the Activity to use the layout from the binding object. But the question is, why not use findviewbyid? Null-safe for layouts defined in multiple configurations.

@Override public void onCreate(Bundle savedInstanceState) setContentView(tivity_main TextView myTextView String text if (savedInstanceState! It includes the default EditText with an id of welcomeMessage. Xml to let the TextView be a direct child of my custom view, so that the ndViewById should work as supposed.

In the case of included layouts, view binding will create a reference to the included layouts binding object. Text "Hi, I'm Daniel Malone!" In lines 15-16 we get a reference to the TextView by passing findViewById its. You can use the binding class whenever you inflate layouts such as Fragment, Activity, or even a RecyclerView Adapter (or ViewHolder).

Location_layout and in my custom view class. Text "Hi, I'm Daniel Malone!" welcomeMessage. Int id tItemId if (id tion_settings) return true; return * A placeholder fragment containing a simple view. View binding will detect if a view is only present in some configurations and create a @Nullable property.

I'm trying to call this function but always return null. Inflate(inflater, parent, attachToParent) Use this in a Fragment or a RecyclerView Adapter (or ViewHolder) where you need to pass the parent ViewGroup to the binding object.